baber/WOPTO huggingface dataset:
Patent CA-2541728-A1 (CA)
Title: Public key encryption with digital signature scheme
Inventor: LITTLE HERB A
IPC: H04L9/32
Filed: 2000-06-21
Abstract: An improved encryption and digital signature system and method in accordance with the invention reuses an encryption ephemeral key pair from an encryption process in a digital signature process. The reuse of the encryption ephemeral key pair in the digital signature process advantageously results in reduced byte size of the digital signature and reduction of costly computation overhead. In a preferred embodiment, the invention is based on the El Gamal encryption scheme and the Nyberg-Rueppel signature scheme. The present invention is particularly useful for operation in conjunction with small communication devices having limited processing and storage, wherein such devices may communicate via bandwidth sensitive RF links.
Patent CA-2541751-A1 (CA)
Title: Phenoxyether derivatives as ppar modulators
Inventor: YORK JEREMY SCHULENBURG
IPC: C07C59/135
Filed: 2004-10-08
Abstract: The present invention is directed to a compound of formula (I), or a pharmaceutically acceptable salt, solvate, hydrate or stereoisomer thereof, which is useful in treating or preventing disorders mediated by a peroxisome proliferator activated receptor (PPAR), such as syndrome X, type II diabetes, hyperglycemia, hyperlipidemia, obesity, coagaulopathy, hypertension, arteriosclerosis, and other disorders related to syndrome X and cardiovascular diseases.
Patent CA-2542550-A1 (CA)
Inventor: SHIDHAM VINOD B
IPC: A61B10/02
Filed: 2004-11-05
Abstract: A needle aspiration biopsy device (20) includes a syringe (28), a valve coupler (25) for controlling a vacuum in the syringe barrel (30), and an anti-reflux head. The head includes a hub (24), defining a large collection well (64) preferably several hundred micro liters in volume, and a needle (22) mounted to the hub (24). A passageway is defined either by a contoured needle or a straight needle and an internal channel in the hub wall such that a proximal end of the passageway extends inside the hub (24) and opens in spaced relation to a floor (66) of the collection well (64). A method of biopsy using the device is also disclosed.
Patent CA-2543440-A1 (CA)
Title: Safety eyewear assembly with prescription insert
Inventor: FROISSARD LAURENT
IPC: G02C/
Filed: 2004-11-02
Abstract: A safety eyewear assembly includes safety eyewear (10) and a prescription lens insert (56). The safety eyewear (10) includes a frame (12) having a brow bar (16) configured to extend across the brow of the wearer and further includes a plurality of raised shoulders (30) spaced along the brow bar (16), and a unitary safety lens (14) removably mounted adjacent the outer surface of the brow bar (16) wherein vertically extending venting channels (32) are formed between the outer surface of the brow bar (16) and an inner surface of the lens (32). The prescription lens insert (56) includes a left lens frame (58) configured for receiving a prescription lens (), a right lens frame (60) configured for receiving a prescription lens (68, 70), and a sculpted connecting wire (62) configured to be received in interfitting mating relation with at least one of the raised shoulders (30) of the brow bar (16), and further configured to extend through the venting channels (32) such that the sculpted wire (62) is releasably captured between the outer surface of the brow bar (16) and the inner surface of the lens (14).
Patent CA-2543871-A1 (CA)
Title: Object detection in images
Inventor: LANDABASO JOSE-LUIS
IPC: G06V10/28
Filed: 2004-11-08
Abstract: The invention applies a segmentation operation to an input image to identify foreground objects of interest, and then applies a shadow removal operation to remove any detected shadows from the foreground segmentation. The shadow removal algorithms can leave holes and bisections in the segmentation map, however, which will then subsequently impact on an object detection step performed using connected component analysis. To get around this problem, the invention applies a conditional morphological dilation operation to the segmentation map to "grow" the segmented blobs to fill in any holes and bisections, without re-growing shadow pixels in the segmentation. The result is an object detection method and system which is robust to illumination changes causing shadows and/or highlights.
Patent CA-2543975-A1 (CA)
Inventor: NOZAKI YOSHIHARU
IPC: F16L55/165
Filed: 2006-04-19
Abstract: Slurry A is kneaded at ground level to produce a high-flow low-viscosity mortar, whereupon the kneaded Slurry A is pressure fed by a Slurry A pump via a Slurry A hose to a fixed volume dispensing section.  Simultaneously, kneaded Slurry B is pressure fed by a Slurry B pump via a Slurry B hose to a kneading section. Slurry A supplied to the fixed volume dispensing section is then more uniformly kneaded there and, by adding Slurry B, i.e. the additive, in the subsequent kneading section and kneading Slurry A with Slurry B in a fixed proportion, a high-viscosity mortar is produced, with said high-viscosity mortar injected into a space between an existing pipeline and a spiral wound pipe through an injection nozzle of a supply hose.
Patent CA-2546052-A1 (CA)
Inventor: CAO SHUGUANG
IPC: H01M50/497
Filed: 2004-11-12
Abstract: This invention relates to ion conducting random copolymers that are useful in forming polymer electrolyte membranes used in fuel cells.
Patent CA-2551123-A1 (CA)
Inventor: FAFARD SIMON
IPC: H01L31/18
Filed: 2005-01-20
Abstract: A monolithic semiconductor photovoltaic solar cell comprising a plurality of subcells disposed in series on an electrically conductive substrate. At least one subcell of the plurality of subcells includes an epitaxially grown self-assembled quantum dot material. The subcells are electrically connected via tunnel junctions. Each of the subcells has an effective bandgap energy. The subcells are disposed in order of increasing effective bangap energy, with the subcell having the lowest effective bandgap energy being closest to the substrate. In certain cases, each subcell is designed to absorb a substantially same amount of solar photons.
Patent CA-2553056-A1 (CA)
Inventor: GORAL DAVID J
IPC: A61M25/18
Filed: 2006-07-24
Abstract: A needle guard includes a clip with a canting wall to grip the needle shaft and a distal wall to block the tip thereof, wherein the canting and distal walls may be interconnected by an angled strut, a spring member, such as a leaf spring, may have a portion extending past an edge of the strut to bias the clip to grip the needle shaft, and the distal wall may be or include a stylus and have an L-shape to define a lip to help block the needle tip. The clip may have a depending heel to help pivot the clip about a ledge to grip the needle shaft. A needle support may be provided to limit flexure of the needle which might otherwise allow the needle to come loose from the clip. Arrangements for limiting rotation of the needle hub and needle guard housing are provided, as is a protective shroud to reduce the risk of inadvertent activation of the needle guard. Further, the needle guard may be used with a catheter assembly. Also provided is an improved duckbill release mechanism.
Patent CA-2555196-A1 (CA)
Title: Needle guide
Inventor: FILLER AARON G
IPC: A61B19/00
Filed: 2004-11-04
Abstract: A needle guide 100 for decreasing the incidence of needle injury to an operator who is accessing the interior of a container, such as a medical fluid container, by an accessing device 132, such as a syringe with a needle 134 attached to the distal end of the syringe. A device 200 for decreasing the incidence of needle injury to an operator who is accessing the interior of the container by an accessing device 132, such as a syringe with a needle 134 attached to the distal end of the syringe, the device comprising a container, such as a medical fluid container, with an integrated needle guide.
Patent CA-2555795-A1 (CA)
Inventor: HAGGSTROM KURT
IPC: A61M25/00
Filed: 2005-02-11
Abstract: A catheter is provided including a tubular body having a proximal end and a distal end. The body includes a first lumen and a second lumen with a septum disposed therebetween. The proximal end includes a valve and a hub are integral with the body. The hub includes a first conduit and a second conduit.  The valve includes a first port and a second port that are rotatable, about a longitudinal axis of the body, to establish fluid communication between the lumens and the conduits. The distal end of the tubular body may be configured for insertion with a subject. The conduits may be connectable to a medical apparatus.
Patent CA-2556290-A1 (CA)
Inventor: XING LINLIN
IPC: D04H1/64
Filed: 2006-08-16
Abstract: A fiber mat of improved wet web strength and a process of making same is disclosed. The fiber mat comprises fibers; a resinous fiber binder; and a vinylpyrrolidone/acrylic acid/lauryl methacrylate terpolymer.
Patent CA-2557732-A1 (CA)
Inventor: MOOR DAN
IPC: A61B17/04
Filed: 2005-03-03
Abstract: An implement for manipulating a knotted suture (150) during a surgical procedure, includes an elongated shaft (130) having a proximal end engageable by the user for manipulating the instrument, and a distal end engageable with the knotted suture (150) to be manipulated. The distal end (132) of the elongated shaft (13) has an end face (134) formed with a recess (135) for receiving the knot (151) of the suture. The distal end (132) of the elongated shaft (130) is formed with an open slot (133) starting from a location spaced from the end face (134) and leading to the recess (135) in the end face, such as to enable the knotted suture (150) to be introduced into the slot (133) and the recess (135) by effecting a sidewise movement. The implement further includes a tubular cutter member (120) enclosing the elongated shaft (130) and formed with an annular cutting edge (122) engageable with a suture in the open slot (133) of the shaft (130) upon movement of the elongated shaft (130) with respect to the tubular cutter member (120), or by vice-versa.
Patent CA-2557948-A1 (CA)
Inventor: ALLIDIERES LAURENT
IPC: F04B23/02
Filed: 2005-02-16
Abstract: A system for the pumping of a cryogenic fluid comprises at least one reservoir of fluid, a cryogenic pump with an entry charge loss (NPSH), and an aspiration line joining the reservoir to the pump.The system comprises means for control of pressure to maintain a pressure in the aspiration lines at most equal to the saturation pressure of the cryogenic fluid augmented by the NPSH of charge entering the pump.
Patent CA-2558722-A1 (CA)
Title: Preparation of amines from compounds having carbodiimide groups from hydrolysis with water
Inventor: KOHLSTRUK STEPHAN
IPC: C07C209/62
Filed: 2005-01-27
Abstract: The invention relates to a one-stage or multistage process for preparing mono-, di- and/or polyamines from compounds having carbodiimide groups and optionally also other groups of isocyanate chemistry by hydrolysis with water.
Patent CA-2560399-A1 (CA)
Title: Modular compression device and method of assembly
Inventor: CREIGHTON BARRY L
IPC: A61F13/08
Filed: 2005-03-18
Abstract: An apparatus for applying pressure to a body part comprising multiple interconnectable bands of compressible or noncompressible material. Optional spine to further interconnect the bands. Interconnectable pieces designed for covering specific body areas. Modular arrangement of the individual components. Customized or off-the-shelf availability of the apparatus.
Patent CA-2566295-A1 (CA)
Title: System and method for transmission and reception of qam signals at low signal to noise ratio
Inventor: HRYHORYEU ALIAKSANDR
IPC: H04L5/04
Filed: 2004-03-30
Abstract: The system for transmission and reception of QAM signals for use in telecommunication networks for any data rates at SNR (signal to noise ratio) of below 0 dB comprises two de~vices. The first device may be used for transmission. Units (1)-(4) transform input bit in~formation sequence (17) with the clock frequency ft (18) into two parallel m-level se~quences with the clock frequency (a) forming the first and second channels, where k=log2(m).  Unit (5) forming additional signals (b),(c), where .omega.t= 2.pi.ft.Units (6), (7) multiply m-level sequences of the first and second channels with signal (b) for removal phase ambiguity at reception end, and units (8), (9) adding with sig~nal (c), defining level of the additional pilot-signal in output spectrum. Filters (10), (11) forming baseband QAM signal spectrum and units (12)-(16) shift of spectrum at in~termediate or carrier frequency. The second device may be used for reception. Restoration of the carrier and clock frequencies at reception end performing with used two PLL (phase lock loop) systems using availability in signal spectrum additional pilot-signal. This is al~low set up synchronization for signal to noise ratio below 0 dB. In this case additional losses amounts 0.3-0.7 dB.
Patent CA-2568954-A1 (CA)
Inventor: SCHWEIZER FRANK
IPC: C07H99/00
Filed: 2006-11-27
Abstract: A short synthetic route to polyhydroxylated spirocyclic glucose-based L-proline analogues is described from easily prepared 2,3,4,6 tetra-O-benzyl-D-glucono-lactone. The synthesis involves C-glycosylation of an exocyclic glucose-based epoxide with allyltributylstannane that affords functionalized C-ketosides containing a .alpha.-hydroxy ester moiety. Oxidation of the alcohol function, followed by stereoselective reductive amination provides an amine that undergoes iodine-induced aminocyclization to provide spirocyclic glucose-proline hybrids bearing an iodomethylene side-chain. The iodo function of the side-chain can be converted into other functional groups such as ester-and hydroxyl group thereby allowing additional modifications to the pyrrolidine ring.  Deprotection of the sugar scaffold produces spirocyclic glucose proline hybrids that can be converted into polyfunctional amino-protected acids that serve as building blocks in peptide synthesis.
Patent CA-2569921-A1 (CA)
Inventor: ALFTHAN ARTO
IPC: A01G/
Filed: 2006-12-01
Abstract: A control coupling of pressurized medium in a delimbing and cutting apparatus, provided for feeding members and for changing their feeding speed, said control coupling comprising at least: a first motor (7) and a second motor (8) that are coupled in parallel and drive a feeding member (12); a third motor (9) that is a multicapacity motor comprising a first half-motor (91) and a second half-motor (92) and that is coupled in series with the first motor (7) and drives a feeding member (13); a fourth motor (10) that is coupled in series with the second motor (8) and drives a feeding member (14); first valve members (26) that for the purpose of free rotation allow the feedback of the pressurized medium exiting the third motor (9) to the first half-motor (91); and first control members (24, 28, 36, 40) that monitor the pressure of a first line (22) and couple the first valve members (26) to free rotation if said pressure is lower than the set value.
Patent CA-2572628-A1 (CA)
Title: Light pipe having a structure of enhancing an emission of a light
Inventor: LEE SANG HOON
IPC: G02B6/10
Filed: 2006-12-27
Abstract: The present invention is directed to a light pipe having a structure of enhancing an emission of a light. According to one embodiment of the present invention, a hollow light pipe comprises a base pipe comprising a structured inner surface and a substantially smooth outer surface ; and a plurality of diffusive particles disposed on the outer surface.    According to another embodiment of the present invention, a hollow light pipe comprises a base pipe comprising a structured inner surface and a substantially smooth outer surface ;  and a film having a plurality of scattering patterns on at least one surface of the film, and being disposed at inside or outside the base pipe.     According to further another embodiment of the present invention, a hollow light pipe comprises a base pipe comprising a structured inner surface and a substantially smooth outer surface ; and a cone-shaped extractor being disposed inside the base pipe.
Patent CA-2573539-A1 (CA)
Inventor: JAYAPRAKASAM BOLLEDDULA
IPC: A61K36/45
Filed: 2005-07-25
Abstract: A method for the treatment of obesity, diabetes, high cholesterol and related diseases including hyperglycemia, lipid disorders, hyperglyceridemia, dyslipidemia and atherosclerosis in mammals using anthocyanins, anthocyanidins, ursolic acid and/or betulinic acid is described. Compositions adapted for these treatments are also described.
Patent CA-2574902-A1 (CA)
Inventor: BROWN JAMES R
IPC: A61K8/04
Filed: 2005-10-28
Abstract: A post foaming oral care mousse is provided by the invention. The mousse includes at least a dentifrice composition and a compressed liquid propellant having a boiling point less than -10~C. The liquid propellant is blended into the mousse as an emulsion, and the emulsion is adapted to be dispensed from a container as a gel that foams after a time delay. The mousse has a viscosity of less than 30,000 centipoise when measured prior to the addition of the propellant. Preferably, the mousse expands at least 100 vol % in less than 5 seconds upon exposure to atmospheric pressure.
Patent CA-2578578-A1 (CA)
Title: Elevator cage and method for the installation an elevator cage
Inventor: HOERLER MARCO
IPC: B66B11/02
Filed: 2005-08-19
Abstract: Disclosed is an elevator cage comprising a cage platform (1) with several platform sections (2, 3, 4). Stable profiled platform edges (8) are joined to the top faces of all platform sections in order to stabilize the entire cage platform. The platform sections are also provided with joining points (2.1, 3.1, 4.1) which are located on parallel vertical planes and at which the platform sections are additionally interconnected by means of joining elements. According to the inventive method for installing an elevator, the cage platform (1; 21) is prepared in the production facility in at least two separate platform sections (2, 3, 4) and is delivered to the place of installation of the elevator along with two profiled platform edges. The separate platform sections (2, 3, 4; 22, 23, 24) of the cage platform (1; 21) and the profiled platform edges are joined together by means of joining elements at the place of installation so as to form a cage platform.
Patent CA-2579058-A1 (CA)
Inventor: REVELLE DAVID J
IPC: F16B1/00
Filed: 2005-09-01
Abstract: An improved method of holding a key ( 20 ) in a keyway ( 31 ) includes the steps of: forming an elongated keyway in the member, the member having at least one sharp corner ( 34 ) facing into the keyway adjacent either end thereof; forming a key ( 20 ) to fit in the keyway, the key being so dimensioned, proportioned and configured that the part of the key immediately adjacent each sharp corner will be recessed with respect to the surface of the member at the corner; placing the key in the keyway; and plastically deforming portions ( 40 ) of the member at the sharp corners into the keyway so as to permanently hold the key in the keyway.
Patent CA-2580107-A1 (CA)
Title: Growth factor treatment for asthma
Inventor: DAVIES DONNA ELIZABETH
IPC: A61K38/18
Filed: 2005-09-13
Abstract: The present invention relates to use of a growth factor which is an epidermal growth factor (EGF) analogue, a KGF or KGF analogue to treat, or protect from, 10 bronchial epithelium damage in asthma patients. Suitable EGF analogues for this purpose target the EGF receptor and exhibit ability to promote in asthma patients preferential proliferation of bronchial epithelial cells compared to airway fibroblasts.
Patent CA-2581214-A1 (CA)
Title: Systems and methods for the production of steam-pressed long fiber reconsolidated wood products
Inventor: JARCK WALTER
IPC: B27B1/00
Filed: 2005-09-21
Abstract: The present invention relates generally to the timber products industry, and particularly to methods and apparatus for use in the manufacture of reconstituted or reconsolidated steamed-pressed long fiber wood products. More particularly, the present invention relates to methods and apparatus for use in the manufacture of reconstituted or reconsolidated wood products using crushing and steam pressing methods and apparatuses.
Patent CA-2581264-A1 (CA)
Inventor: REICHEL LEE
IPC: A61B17/3209
Filed: 2007-03-06
Abstract: A medical device for severing and removing small amounts of internal tissue for biopsy sampling or other purposes is disclosed. Versions of the device may include a hollow probe having a piecing tip, a tissue receiving aperture and a vacuum lumen; a cutter within the probe having a cutting edge that moves past the tissue receiving aperture, and a cutter driver mechanism. A cutter for use with versions disclosed herein may include an angled cutting tip and a cutting edge having a concave grind. Versions of the device also may include an aspirator fluidly connected to the vacuum lumen, coordinated operation of the aspirator and the cutter driver mechanism, and a fluid management system.  Versions described may be used for removing multiple samples of tissue during a single insertion of the probe proximate to a target tissue mass.
Patent CA-2583805-A1 (CA)
Inventor: DESJARDINS PHILIP
IPC: H04L1/00
Filed: 2005-10-13
Abstract: A multi-carrier communication system receives a plurality of data frames comprised of a plurality of bit groups in a data stream of the multi-carrier communication system, wherein up to R bit groups are identified as corrupted by analyzing corresponding tone values, and corrects the up to R bit groups associated with one or more corrupt frames of the plurality of data frames.
Patent CA-2585354-A1 (CA)
Inventor: CAWTHRAW SHAUN
IPC: C07K14/205
Filed: 2005-10-25
Abstract: Nucleic acids encoding Campylobacter proteins, in particular antigenic proteins such as a flagellin, or encoding a variant thereof, or a fragment of either of these, are capable of protecting poultry such as chickens, against colonisation by Campylobacter, and so may be used in veterinary therapy or prophylaxis. This has an impact on human health.
Patent CA-2592316-A1 (CA)
Title: Liquid-resistant protection for an extremity
Inventor: SANDELL JAN-ERIC
IPC: A61F15/00
Filed: 2005-12-19
Abstract: A liquid-resistant protection for part of an extremity comprises a sleeve (1) of a waterproof polymer film, the sleeve (1) having an open end (2a). The liquid-resistant protection further comprises an adhesive layer (3) for sealing the sleeve (1) arranged on a section (3) of the outside of the sleeve (1) adjoining the open end (2a). A method of achieving a liquid-resistant protection around an extremity is demonstrated. A set of parts for forming a liquid-resistant protection for part of an extremity is furthermore demonstrated.
Patent CA-2593675-A1 (CA)
Title: Use of aramid fiber conjunction with thermoplastics to improve wash-off resistance and physical properties such as impact and expansion
Inventor: KYE JIHONG
IPC: C08L63/00
Filed: 2006-01-27
Abstract: One-part epoxy adhesive formulations, and methods of using the same, are described. The formulations include, among other things, powdered methacrylate butadiene styrene and aramid pulp to, among other things, improve the wash off resistance, T peel strength, and impact strength characteristics thereof.  Additionally, the formulations exhibit desirable expansion characteristics.  The formulations are especially suitable for use in joining automotive components.